87125329 has 4 divisors (see below), whose sum is σ = 87168676. Its totient is φ = 87081984.

The previous prime is 87125261. The next prime is 87125333. The reversal of 87125329 is 92352178.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10387729 + 76737600 = 3223^2 + 8760^2 .

It is a cyclic number.

It is not a de Polignac number, because 87125329 - 2⁷ = 87125201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87125729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18504 + ... + 22729.

It is an arithmetic number, because the mean of its divisors is an integer number (21792169).

Almost surely, 2^87125329 is an apocalyptic number.

It is an amenable number.

87125329 is a deficient number, since it is larger than the sum of its proper divisors (43347).

87125329 is a wasteful number, since it uses less digits than its factorization.

87125329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43346.

The product of its digits is 30240, while the sum is 37.

The square root of 87125329 is about 9334.0949748757. The cubic root of 87125329 is about 443.3174335539.

It can be divided in two parts, 8712 and 5329, that added together give a palindrome (14041).

The spelling of 87125329 in words is "eighty-seven million, one hundred twenty-five thousand, three hundred twenty-nine".